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Borosilicate Glass Tube - OD 50mm ID 40mm L 1000mm

Details

SKU: 1000183075 Product Code: SI81-TB-000250
Borosilicate Glass Tube is engineered for high thermal shock resistance, low thermal expansion (~3.3–4.3 × 10⁻⁶/°C), and excellent chemical durability, derived from its silica-boron oxide composition. Its stability under rapid temperature changes and resistance to corrosive chemicals make it indispensable in laboratory, pharmaceutical, and renewable energy sectors. Common uses include heat collector envelopes in concentrated solar power systems, precision tubing for medicament containers, and structural components in low-pressure discharge lamps. Specific technologies benefiting from borosilicate glass tubes include photothermal power generation assemblies, photomultiplier housings, and specialized optical conduits. Research continues to refine its composition to enhance UV–NIR transparency, mechanical strength, and environmental safety by eliminating hazardous refining agents. Its combination of durability, optical clarity, and adaptability ensures borosilicate glass tubes remain a critical material in both advanced scientific instrumentation and industrial energy systems.
Formula: SiO₂ 81% / B₂O₃ 13% / Na₂O 4%
Outside Diameter: 50mm
Wall Thickness: 5mm
Inside Diameter: 40mm
Length: 1000mm
Type: As-cut
UOM Code: 619-444-20
Legacy Code: SI817150
Distributor Code:
GF61944420

Tolerances

Tube
Outside Diameter =<2mm ±0.05mm
Outside Diameter 2mm - 5mm ±0.1mm
Outside Diameter >5mm ±5%
Wall Thickness ±10%
Length <100mm ±1mm
Length >=100mm +5% / -1%
$620.00
each
No Minimum order Free technical support *Free delivery worldwide

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Material Properties

Chemical Resistance
Element Value
Acids - concentrated 0
Acids - dilute 0
Alkalis 0
Halogens 0
Metals 0
Electrical Properties
Element Value
Dielectric constant 0
Dielectric strength( kV mm⁻¹ ) 0
Volume resistivity( Ohmcm ) 0
Mechanical Properties
Element Value
Poisson's ratio 0
Tensile modulus( GPa ) 0
Hardness - Knoop( kgf mm⁻² ) 0
Hardness - Vickers( kgf mm⁻² ) 0
Shear strength( MPa ) 0
Tensile strength( MPa ) 0
Fracture toughness( MPam(0.5) ) 0
Physical Properties
Element Value
Refractive index 0
Useful optical transmission range 0
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 2.23
Thermal Properties
Element Value
Melting point( C ) 0
Sublimation point( C ) 0
Upper continuous use temperature( C ) 0
Specific heat( J K⁻¹ kg⁻¹ ) 0
Thermal conductivity( W m⁻¹ K⁻¹ ) 0
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 0
Pultrusions
Element Value
Compressive strength( MPa ) 0